Uses the same heroicon as DocumentThumbnail so the "no thumbnail yet" signal reads identically across the app: one shape, one meaning. The parchment SVG still lives on in the fully-empty state (no resume doc at all), where it represents a different thing — we removed it only from the "document exists, thumbnail not generated yet" branch (#309). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>